PowerShell

Get the JWS Payload into BinData

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.GetPayloadBd, which writes the payload of a loaded JWS as raw bytes into a BinData.

Background. This is used when the payload is binary. In practice, validate the signature before trusting the payload.

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Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

$jws = New-Object Chilkat.Jws

#  Load the JWS compact serialization.
$jwsCompact = "eyJhbGciOiJIUzI1NiJ9.VGhpcyBpcyB0aGUgY29udGVudCB0byBzaWduLg.<signature>"
$success = $jws.LoadJws($jwsCompact)
if ($success -eq $false) {
    $($jws.LastErrorText)
    exit
}

#  Get the JWS payload as raw bytes into a BinData.
$bdPayload = New-Object Chilkat.BinData
$success = $jws.GetPayloadBd($bdPayload)
if ($success -eq $false) {
    $($jws.LastErrorText)
    exit
}

$("Payload is " + $bdPayload.NumBytes + " bytes.")